食品科学

• 生物工程 • 上一篇    下一篇

甲硝唑人工抗原的合成及鼠源多抗的制备

刘儒彪,胡骁飞,张改平,王方雨,邓瑞广,刘 璐,贾国超,刘 玺   

  1. 1.河南科技学院食品学院,河南 新乡 453003;2.河南省农业科学院,河南省动物免疫学重点实验室,河南 郑州 450002;
    3.河南农业大学牧医工程学院,河南 郑州 450000
  • 出版日期:2014-10-15 发布日期:2014-10-17

Synthesis of Artificial Antigen and Preparation of Polyclonal Antiserum against Metronidazole

LIU Ru-biao, HU Xiao-fei, ZHANG Gai-ping, WANG Fang-yu, DENG Rui-guang, LIU Lu, JIA Guo-chao, LIU Xi   

  1. 1. College of Food Science and Technology, Henan Institute of Science and Technology, Xinxiang 453003, China;
    2. Henan Provincial Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China;
    3. College of Animal Husbandry and Veterinary, Henan Agricultural University, Zhengzhou 450000, China
  • Online:2014-10-15 Published:2014-10-17

摘要:

为了获得效价高、特异性好的甲硝唑(metronidazole,MNZ)的小鼠多抗血清,采用琥珀酸酐法将甲硝唑上的羟基改造成羧基,然后通过碳二亚胺法把改造后的甲硝唑分别与牛血清白蛋白(albumin from bovine serum,BSA)和卵清蛋白(ovalbumin,OVA)进行偶联,制备免疫原MNZ-BSA和包被原MNZ-OVA。经紫外扫描和十二烷基硫酸钠-聚丙烯酰胺凝胶电泳初步鉴定偶联成功。将免疫原MNZ-BSA分成20 μg/只和50 μg /只2 个剂量分别免疫8 周龄的BALB/c小鼠。获得了效价高、特异性好的小鼠多抗血清,效价均达到1∶104以上,IC50值为61.39 ng/mL。

关键词: 甲硝唑, 人工抗原, 多抗血清, 快速检测

Abstract:

Specific high-titer mouse polyclonal antisera against metronidazole were prepared by converting the hydroxyl
groups in the metronidazole molecule into carboxyl groups using succinic anhydride method and conjugating the modified
molecule (MNZ) respectively with albumin from bovine serum (BSA) and ovalbumin (OVA) using carbodiimide method
to form the immunogen MNZ-BSA and the coating antigen MNZ-OVA. UV spectroscopy and SDS-PAGE confirmed that
MNZ was coupled successfully to the carrier protein. Specific high-titer polyclonal antisera were obtained by immunizing
Balb/c mice with MNZ-BSA at a dose of 20 μg or 50 μg for each mouse for 8 weeks, respectively, and the titers were
achieved to be 1:104 and IC50 was 61.39 ng/mL.

Key words: metronidazole, artificial antigen, polyclonal antibody, rapid detection

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